About
This half-hardy annual reaches approximately 90 cm in height and features delicately divided leaves. Its semi-double blooms appear in various shades of yellow and orange, providing color from summer through autumn.
About the genus
Cosmos comprises both annual and perennial species characterized by either simple or pinnately divided foliage. These plants produce sizable, long-stemmed flowers resembling daisies during the summer months.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H3
Plant details
- Plant type
- Annual Biennial
- Habit
- Columnar upright
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1 year
- Suggested uses
- Cottage and informal garden, Patio and container plants, Wildlife gardens, City and courtyard gardens, Coastal
Care notes
- Cultivation
- Grow in moderately fertile, moist but well-drained soil in full sun
- Pruning
- Deadheading should be carried out regularly to prolong flowering
- Propagation
- See sowing seeds indoors
- Pest resistance
- Aphids and slugs may be a nuisance
- Disease resistance
- May be susceptible to grey moulds